Hmmmf... The age old conflict between convenience and security..!

Willpower. I used a program (on Mac) called Freedom. Basically you set a timer and until that timer is up, you can't connect to the internet. The difference in this program is that ou have to do a full restart if you want to connect again, and I typically found it just wasnt worth the trouble.

I can't stop mindless net browsing. Checking the same sites over and over again, sometimes clicking the bookmark for the page I'm already on. It's ridiculous. HOW DO I QUIT?